v4.1.0 bumps

[hard-nett]

• https://docs.terp.network/validators/nodes/installation - automatically fetch <version-tag>, pre-built binary, sha256sum, based on latest github release
• https://docs.terp.network/validators/nodes/initialize - touch on paths that may be taken from this point (sentry node, validator, rpc etc)
• https://docs.terp.network/validators/nodes/configure - update min gas config
• http://localhost:3000/overview - define additional custom modules
• http://localhost:3000/developers/developer-tools/introduction fix links, cleanup cli documentation

Tutorials

• https://docs.terp.network/validators - would be good to introduce to nodes, why nodes are needed, how to interact with nodes
• My First Dapp
• Sentry Node
• Seed Node
• Archive Node
• Hardware requirements
• Initial Server Setup https://www.digitalocean.com/community/tutorials/initial-server-setup-with-ubuntu-16-04
• core-cosmwasm